Xfinity ipv6 address. You have to now setup pfSense to use your prefix.

Xfinity ipv6 address Instead, type "Xfinity Support" there. I’ve r How do I keep my IPv4 address when switching to the newest XFi modem? I have an XB6 now and returned an XB7 a few years ago because it came with an IPv6 address and no one at support could help me. The modem is a Netgear CM2000 which works great. 78 in the state of New York gets c-12-345-6-78. All of your problems will go away. I have used the default WAN, LAN, and RA settings (which all looked like they should work) and a reasonable number of variations with no effect. But you can't disable IPv6 or set an internal IPv6 DNS server, so devices will still use Comcast even if you use another device for IPv4 DHCP. Your Xfinity router has a special address called an IP address. Enabling IPv6 is therefore a good idea for speed alone, as it avoids the time a client spends trying something that can’t work before falling • Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. 61. gateway. comcast. Press Enter to send it Check Device Details and confirm that the device is using an IPv4 address to connect to the network and not an IPv6 address. I have discoverd my IPV6 address using the website, how do I find the gateway address and how do i come up with static IPV6 address. 6. Other benefits include more efficient routing and stateless address How do I get a personal (for home user) IPv6 prefix address which does not change? I would like to setup IPv6 in my home - and while I can get it working 95%, COMCAST will randomly change my IPv6 Address assignment, The network portion uses the higher order bits of the address while the host uses the lower order bits. Does anyone know how to work with Xfinity/ Comcast to get a more stable IPv6 WAN IP address? I use my WAN IP for ACLs and now they need to be updated every 2-3 days. The goal is to get "the clients to ping ipv6. Thought it was my router or modem but turns out I had IPv6 off and once I turned it on, the lag got fix and my download speeds are now stable. Regular Visitor • 3 While IPv4 is working correctly, I'm unfortunately seeing issues with IPv6. Devices that don't support stateful address assignment can still use stateless. What I'm aiming at is that DHCPv6 is optional. "Comcast does not block or otherwise prevent end user access to lawful content, applications, services, or non-harmful devices. I have just receive the new XB8 and want to make sure I keep my IPV4 address before I go through the hassle of switching out the modems. If you are using your own modem, check with the manufacturer of your modem on how to disable Ipv6 and set Ipv4 as "Preferred. 5gbs capable Motorola MB8611. Are IPv6 addresses routing? On Xfinity / Comcast, my IPv6 WAN IP changes every few days -- unlike my IPv4 address which is stable for > 1 year. If you prefer to not use an IPv6 connection, please check your device’s settings to disable IPv6 or make IPv4 preferred. I also checked Request a IPv6 prefix/information through the IPv4 connectivity link because I think their ipv6 is boned. I am using Comcast's residential service with an RV340 and a NETGEAR Nighthawk Cable Modem with Voice CM1150V. I just want to know what the actual setting should be for my Asus RC-3200 AC Thank you so much @sparky04cr!. Community Specialists will provide official support between the hours of 6:00am - 12:00am Eastern Time My setup is Modem: MB8611 Router: Netgear Orbi RBR20 I set the Orbi's IPv6 setting to Auto Config, rebooted it as well as my modem, but no IPv6 address is detected at https://test-ipv6. As a result, I can't access local stations on my streaming services. New Poster • 1 Message. net AAAA IPv6 address = 2001:558:100e:5:68:87:72:244 Forward and reverse records only exist for hostnames not domains. Products Products. x. Now I have IPv6 addresses on both interfaces. Skip to content. DNS doesn’t work and I’m not able to connect my work laptop to the corporate vpn since it can’t look up the host name. We'll be happy to walk you through If the settings are present and configurable, use DHCPv6 with PD (Prefix Delegation) and RA (Router Advertisement. ThanksBrian . I think my router just doesn't support ipv6 so there is not much I can do besides getting xfinity to give me an ipv4 address or getting a new router. comcast6. I got frustrated hearing Comcast's automated robot telling Hi, As you may know, Xfinity recently graded it's network speed to 2. I would like to know where the Comcast IPv6 servers are getting their IPv4 addresses? Specifically, the 2001:558:feed::1 server is reporting the IP address of a public site that I own incorrectly.  Updated in modem(MT8733) settings. This was the Hi support folks. Check Device Details and confirm that the device is using an IPv4 address to connect to the network and not an IPv6 address. interfaces --> lan == (same page) IPv6 Interface select WAN and select 0 for IPv6 Prefix ID Mobile operators have generally used CG-NAT. I configured my router to enable ipv6 but didn't work. I have connected a WIFI router to the Motorola modem in which settings I can only choose IPv4. Current Page.  Contacted cust support. The two WiFi bands have recently been combined into one with the Comcast gateway devices. We can help with technical issues, general service questions, upgrades & downgrades, new accounts & transfers, disconnect requests, credit requests and more Welcome to the Xfinity community! Our community is your official source on Reddit for help with Xfinity services. I've contacted Xfinity support multiple times, but they haven't been able to resolve this. The ISP instead gives your router a block of public addresses that may be assigned to your devices instead of doing a NAT from a single IPv4 address into a private non-routable address. " Those addresses are always valid on the interface on which they live, but nowhere else. You have to now setup pfSense to use Given this growth, it is important that adequate IP address resources are available to ensure that everyone can connect to the Internet. We can help with technical issues, general service questions, upgrades & downgrades, new accounts & transfers, disconnect requests, credit requests and more I've run a bypass (re-used my Netgear R7000, neutered it down to IPv6 only, and Linked the R700 and UDM LAN interfaces) so now all IPv6 LAN traffic can pass, but the WiFi links won't work on IPv6. It's from 2007. I've setup my LAN interface to track the WAN interface and set the IPv6 Prefix ID to 1 for the first interface (and 2 for the second LAN). The internet for other devices is fine. It's not entirely DHCPv6(managed). (NANOG46) Comcast demonstrated end-to-end IPv6 readiness on its network. xn4p4lm +1 more. Issues getting an IPv6 Address. For your LAN interface, assign it a /64 that falls under your allocated /56. 0 displayed). The MB8600 was quickly replaced with a 2. If you haven't done so already, enable IPV6 and set it to run a /64 or /56. net it will display your IPv4 Assign an IPv6 address to your WAN interface that's in the same /64 that it was in previously when using DHCPv6 or SLAAC/autoconf before. As of this writing in early 2024, we aren’t yet at the point where there are a lot of IPv6-only destinations on the Internet, but here in the US at least, over half Forget the 6in4 tunnel. Firstly just like how every IPv4 has a host name (i. I have set Thank you for joining us here on r/Comcast_Xfinity, your official source on Reddit for help with Xfinity services. On the Windows servers I used the prefix provided and set static IPv6 Addresses using the prefix with ::2 and ::3 for each. Unlike IPv4, IPv6 provides a pool of nearly unlimited IP addresses. hsd1. I am The new Xfinity modem only runs through IPv6. I'd like to let some friends join my Minecraft server, but this is pretty much impossible to do when the IP address keeps changing. Some devices in my home require a iPv6 address therefore I need to change to a IPv6 address. Given this growth, it is important that adequate IP address resources are available to ensure that everyone can connect to the Internet. Return to the previous browser window and paste the IP address. That is where I am lost. Let me know if you have any questions. You should probably Check Device Details and confirm that the device is using an IPv4 address to connect to the network and not an IPv6 address. They aren't routeable. Then, the router will use DHCP-PD to request a /64 or larger from the ISP (Comcast gives up to /60 for home users, I think). you can direct your messages to "Xfinity Support. The Xfinity app can only support port forwards for devices using IPv4 addresses. Xfinity does change the ip address occasionally, probably a few times a year for me. interfaces --> lan == change ipv6 config type to Track Interface. st/3t5QYpr. Offers. In addition to LAN clients not having a working IPv6 address, the router did not have an IPv6 WAN address, although it had a delegated prefix on the LAN side. Customer Service. com". I am able to get an IPv6 address via DHCPv6, which is great. A /128 is just the address pfSense assigned to the WAN interface because you're using DHCPv6 to pull down an address and that's what Comcast gave you. You're right about PD on the CGA4131COM - if you want IPv6 addressing to work with PD (however with an unpredictable prefix), the following settings for the "interfaces" section on the USG should work in config. The router addresses are in fe80::/64, the link-local prefix. 153. Comcast is sending me ipv6 router advertisements. Today I did a DHCPv6 "renew" on the router. Login ☰ Home Forum Wiki Timeline Login IPv6 with Xfinity. I used the xfinity app: 1. Find and Control Your Router with the Xfinity IP Address. Please click on my handle (Comcast_Gina) and send a private message with your name, the business name, the complete service address (including city, state, ZIP, suite number, etc), and the phone or account number. Reply. But despite asking for a /64, I'm getting a single address (/128) on my WAN interface. Some devices get confused and don't know how to see / talk to combined bands. Sometime this week it stopped working, not sure exactly when, and now I'm unable to get an IPv6 subnet or even address of any size. The additional recommendations above may come in handy, depending upon your needs. set the dhcp range for IPv6 to the same ip, if it will let you Welcome to the Xfinity community! Our community is your official source on Reddit for help with Xfinity services. IPv4 does not talk to IPv6 and visa versa. You may need to also allow ICMPv6. Go to www. if someone has the IP of 2601:80:8400:2e70:8ee:8612:abcd:ef9a in New York their I have Xfinity xFi gateway which is kinda limited on options. We're using a Peplink Balance router, a dual-WAN router that NAT-balances the office traffic between Comcast and AT&T (for IPv4 only). And, I see "FW. Home . It is stuck in "searching" state forever. Comcast uses DHCPv6 to assign an address and a prefix to your router. We don't use an exclusively IPv6 address either. But you can't disable IPv6 or set an internal IPv6 DNS server, My clients on the network didn’t get an IPv6 address anymore either. Edit: Sorry EG for my initial response. I did run a ping plotter and confirmed, again, that I still have the 10. I tried working with 5 different support representatives from Comcast and none of them could Send IPv6 prefix hint checked Use IPv4 connectivity checked On the Windows servers I used the prefix provided and set static IPv6 Addresses using the prefix with ::2 and ::3 for each. SLAAC is the standard method of configuring IPv6. I get a ipv6 address on wan 2001:XXXXXXXX I get an ipv6 address on Lan 2601:XXXXXX I cannot get an ipv6 address on opt1 Wan Settings: Dhcp v6 Prefix Delegation size : 60 Send IPv6 prefix hint Dont not wait for RA Lan Settings: The router uses DHCPv6 to get an IPv6 address from the ISP. To be thorough I disabled Windows Firewall and tried that way too. I've noticed that we're assigned a /56 IPv6 prefix in the Xfinity settings. ipv6: [x] enabled ipv6 type: [DHCPv6 with prefix Delegation] Prefix Length: [64] (default) Static DNS 1: 2001:558:feed::1 Static DNS 2: 2001:558:feed::2 Learn all about WiFi and the benefits of setting up a home network for your Xfinity Internet. Every OS nowadays assigns random-ish address, see RFC4941. I followed the steps here to make sure everything was configured right; I see IPv6 addresses on my WAN and LAN interfaces, as well as on my laptop, yet my devices don't seem to have IPv6 connectivity. but generally speaking if you want to disable IPv6 on Comcast service you'll need your own router unless whatever problems IPv6 causes you are specific I would like to know where the Comcast IPv6 servers are getting their IPv4 addresses? Specifically, the 2001:558:feed::1 server is reporting the IP address of a public site that I own incorrectly. XFINITY; SMALL BUSINESS; ENTERPRISE; Comcast Business. With the Reyee R6 Hello I'm trying to connected to a device that I've setup port forwarding on but for some reason all the devices on my network are showing as not having an ipv4 address (only ipv6). privacy focused VPN No longer getting IPv6 address after Xfinity work in my neighborhood. " This will show you your IPv4 address the modem gave you as well as your IPv6 address Check Device Details and confirm that the device is using an IPv4 address to connect to the network and not an IPv6 address. I checked the Gateway > Connection > WAN tab and found that the modem is only getting an IPv6 address from Comcast and no IPv4 address (just 0. 5gbs. xx. The router then uses this address for the clients behind the router (on the LAN side). " Please add your full name and service address to help us locate your account. Comcast has eaten into their own subn I have xfinity with a CM2000 cable modem connected to my pfsense. My router is in bridge mode. My console is wired and reports both ipv4 and ipv6 enabled. So far my setup is a follows: System -> Advanced -> Networking -> Allow IPv6 WAN Interface IPv6 Configuration Type - DHCP6 Use IPv4 connectivity as parent interface - ticked DHCPv6 prefix delegation size - 64 Send IPv6 prefix hint - ticked Block BOGON When I connect to my Xfinity gateway, it only gives me an ipv6 address. e. Type your message in the text area near the bottom of the window. What would be the proper settings to get it to work? The default settings populate including DNS servers but testing on computers fail. Popular ISPs like Comcast Xfinity and Spectrum widely support IPv6. I noticed this two days ago because Forza Horizon 4 would not connect to a Horizon Life session. IPv6 is greyed out. It simply means that the ISP (Comcast in this case) is using an IPv6 IP address to talk to the modem for backend management purposes via SNMP, TFTP, etc. Please offer the ability to have a static IP address for Residential users. My understanding is that each subnet likes to be /64 size for auto configuration, and if your ISP only gives you a PD of /64 that leaves you with just 1 /64 subnet to work with. I can ipv6-ping out just fine and get replies but ipv6 pings from remote hosts to my host fail. Two of the addresses are long while the third one is short. Your Home Network. This was the only way to get the servers to connect to the internet. We can help with technical issues, general service questions, upgrades & downgrades, new accounts & transfers, disconnect requests, credit requests and more Comcast apparently just rolled out IPv6 in my area, as I discovered that my pfSense box had picked up an IPv6 address on its WAN that it hadn't had last week. Is IPv6 in use on my PC? Am I setup correctly? Why does the Comcast test disagree with the TP-Link setup? No, IPv6 is not functional until it is reset, the test just shows the issue. Click Save. I seem to be able to get a DHCP IPv6 address at the router (WAN port 1 reports an IPv6 address up in Welcome to the Xfinity community! Our community is your official source on Reddit for help with Xfinity services. Just a guess, there is an issue getting a new IP address when the lease expires - some interaction issue between the netgear router and comcast. 0/24 addresses to the other devices just fine). 11 to 10. Try Connection type of DHCPv6, set Get IP Address as auto, Get DNS server, the LAN setting to use SLAAC as that is what I use with Xfinity. As members of the Digital Care Team here at Xfinity, we can help with a wide array of concerns including troubleshooting, billing, plan changes, and more. If you’re using one of MikroTik’s fine routers as an Internet gateway, you may at some point wish to enable IPv6 service on it. If you are using a UniFi Security Gateway ( SKU: USG), the following steps are necessary to get IPv6 working: I have a similar problem. This will likely be a /128 IPv6 address (it is in the case of Comcast). They see it’s active but still no address populates. With IPv6, it's all different - everyone gets public address space. However, I don't have IPv6 connectivity (all IPv6 operations hang/time out). Ever since this happened any hardware attached to my Arris modem will only receive an IPv6 IP, the only IPv4 it receives is the self-assigned IP when DHCPv4 fails to get an IP. ipv6 on my Motorola 1st - check that your device has an IPv4 address. That's just the interface address. Home. If your ISP does not yet support native IPv6, you can still enable it I have Xfinity xFi gateway which is kinda limited on options. After the reboot the IPV6 address should be available in the firewalls UI. Comcast is Comcast/Xfinity recently "performed maintenance in my area and upgraded equipment". I had fully functioning IPv6 until early 2022 on my Gigabit Xfinity connection. Community Specialists will provide official support between the hours of 6:00am - 12:00am Eastern Time Comcast is sending me ipv6 router advertisements. st/3vB1l3g), and in less than a minute we’ll tell you if there are any ‘red’ items that you need to fix. com In that case either setting should be fine. Its been 10 minutes since you mentioned IPv6 ;) heheheh. I have multiple subnets at I have Xfinity gigabit. You have created a port forwarding rule on your home network, but before you log out of the Admin Tool, take note of your WAN IP address under Gateway > Connection > XFINITY Network menu in the left pane. That change obsoleted my Motorola MB8600 cable modem, and altered my IPv6 subnet mask from a /64 to a subnet mask of /128, assigning a single external ip address. Alternatively, use the IPv6 Test to check if your ISP WAN IP address is IPv6 enabled. I setup my WAN with a /60, prefix hint and dhcpv6. I did not realize this would happen when switching to xFi and is worse than the setup I had before. I tracked it down to a change in the way DHCPv6 server worked. " You can learn more about port forwarding at https://comca. Expert • "NATIVE" along with all other default settings will permit you to setup/test IPv6 on comcast/xfinity. net/ To tell if your computer or home network is ready for IPv6, visit our special test website (https://comca. The message delivered was "No IPv6 detected. This is exactly how I should be able to set any IPv6 address I want on the LAN (statically - like I did the 10. Hello! I recently moved and after the move I am unable to get an IPv6 Address. It's definitely not SLAAC (stateless). This has happened in the last couple of months, and we've checked to make sure we're sending a DHCP prefix hint yet we don't get anything back at all. I'm attempting to get my IPv6 According to the Xfinity support page the Motorola MB7621 does support IPv6 but for some reason I only get a IPv4 address. I just noticed my MT8733 gateway/router no longer has a LAN side ipv6 address, and as a result, none of the ipv6 capable devices on my home network have access to ipv6 on the internet. When using a Netgear Orbi router I am able to get an IPv6 address if I keep toggling IPv6 on and off several times. The Xfi settings show an ipv4 address under "WAN IP Address" but when i run ipconfig it only shows an ipv6 address. For some reason my IPv6 address keeps changing every few days which is causing issues with some firewalls that I have to keep adding the new address to. The router at Comcast's end is sending RAs with an invalid MTU of 9192. Friday, May 1st, 2020 2:00 PM. Since you are using your own modem, reboot your DD-WRT router after setting up Prefix Delegation to see if it pulls an IPv6 address on the WAN port from Xfinity. 9. Help. Good luck ! I IPv6 with Xfinity. I disabled ipv6 for other reasons, but if you're looking at ipv6 addresses, I would take the location with a grain of salt. FWIW. " When I review the setup for IPv6 on my TP-Link AC1750 router, it shows a connection type of DHCPv6, an IPv6 address, a default gateway, and IPv6 DNS address. 9(2)32 ! ! interface GigabitEthernet1/1 nameif outside security-level 0 ip address dhcp setroute ipv6 address dhcp default ipv6 enable ipv6 nd suppress-ra ipv6 dhcp client pd hint ::/56 ipv6 dhcp client pd According to the Xfinity support page the Motorola MB7621 does support IPv6 but for some reason I only get a IPv4 address. Is it an ipv4 or ipv6 address? Ipv6 has shown my location as far as 1000 miles away, it's far from correct. I'm just getting started with IPv6 and, for the life of me, am unable to get anything better than a /128 prefix. You appear to have no IPv6 at this time. Skip to main content. But, I can get it to work. open xfinity app on phone (can be on general network)-click view network details -click see networks( under wifi name) -click advanced settings -Click LAN and WAN - Click edit LAN -update range to 10. I understand that Xfinity bro At this time we support both IPv4 and IPv6. The xfinity "Xfi" app dashboard says that the the device is connected and the Ps5 is fully up to date with it's software. If you have questions about your services, we're here to answer them. net" it times out. So what's happening is a race condition between the ICMPv6 router advertisements and the DHCPv6 offer. But there was some big work in my neighborhood today (got email about service interruption and saw several crews working on the street), and now that the work is completed, I now longer get an IPv6 address assigned. With the Orbi I can get an IPv6 address by toggling IPv6 off and on a few times but it only lasts a few days and the IPv6 address is no longer available. That is for the DOCSIS WAN managerial side of the modem only and has nothing to do with what the modem bridges to the LAN. I had this working but then IPv6 lost connectivity through my clients. No IPv6 prefix or addresses are received on the pfSense system at all. Hello, I'm setting up IPV6 for my home network and by default, Comcast is assigning a 64-bit prefix delegation size, which allows only 1 subnet. The DNS servers are set to forward requests to Cloudflare I had to manually enter the IPv6 address of the OPNsense box in the default gateway field. Modem: SB8200 Router: Custom PfSense Currrent PfSense config: IPv6 Sometime early 2022 something happened to IPv6 on my Xfinity Gigabit connection. You can view your current IPv4 address at https://comca. but generally speaking if you want to disable IPv6 on Comcast service you'll need your own router unless whatever problems IPv6 causes you are specific A couple of months ago I received a notice that Xfinity was upgrading its network in my area with a middle of the night disruption. e for the IP 12. I've tried restarting my router/modem but didn't I live in Boston and have Comcast xfinity HSI. I am setting up IPv6 on my Mikrotik hEX (RB750Gr3) with RouterOS 7. But the IP only stays for a Welcome to the Xfinity community! Our community is your official source on Reddit for help with Xfinity services. To be clear, my router currently receives a single IPv6 address, and then uses local addresses (ULAs) to route IPv6 traffic through that single address, similar to IPv4. Internet. I was playing online without I've been able to setup IPv6 to the point that my workstations are getting an Ipv6 address (more detail to come) and the firewall can ping ipv6 address such as ipv6. IPv6 INPUT drop" logged on the modem even though "Disable entire firewall" is checked for IPv6. They mention changing my IP address, but that Check Device Details and confirm that the device is using an IPv4 address to connect to the network and not an IPv6 address. A WAN address snapped in along with a new prefix. I am using a laptop plugged directly into the Comcast Router and have the public IP address assigned to the network port on the laptop. Thank you for joining us here on r/Comcast_Xfinity, your official source on Reddit for help with Xfinity services. Our router is set to receive IPV6, but doesn't receive them, and our modem supports IPV6. Comcast does engage in reasonable network management practices described below and in our Network Management Information Center. New Poster • 4 Messages. Xfinity IPv6 subnet bigger than /128 . New to the Community? Start Here. We can make sure their CM is online and acquiring an IPv6 but supporting that kind of networking configuration is beyond us. I have "Track Interface" turned on for my LAN interface, but it doesn't get the prefix delegated to it. When your area transitions to IPv6, you’ll be able to see your IPv6 IPv6 is supposed to replace the old version, IPv4. 3 Hop with abnormally high Being familiar with how to find and use your router’s IP address can save you time and help you manage and troubleshoot your home network effectively. If you contact your Xfinity retail store and trade it in for the “XB6” modem. " Thank you. Xfinity Community Forum. Someone suggested consumer IPv6 only gets /60 not /64 like the commercial accounts. My router is being provided an IPv6 address (and IPv6 subnets via PD for distribution to devices on my local network) from Xfinity via DHCPv6 as expected. Ipv6 is newer uses a longer addresses because we are running out of ipv4 MAC address because of the amount of devices in existence today. Like. The "Xfinity Support" graphic replaces the "To:" line When switched to bridge mode, the modem doesn't even respond to dhcpv6 solicit requests so my router doesn't get ipv6 address. Xfinity IPV6 is undocumented and I can't get any technical answers out of them either or actually get to any type of network engineer. I have Comcast and a rented cable modem. Setting up IPv6 on a Comcast Business account is not straightforward if you are not using Comcast’s combined modem-router. Thank you to mikehanley from the Comcast Business Support Community Forums for the dhcpv6-pd commands. 15. Shop Small Business ; Support Support. With IPv6 you simply need to open a given port or set of The Comcast modem sends "Destination Unreachable (Address unreachable)" ICMP for IPv6 PING traffic during the outage period. I don't recall needing to reboot, but you may need to afterwards to show your IPv6 address on the firmware page. Basically a "default route" for ipv6. IPV4 comes up first, IPV6 just sits there otherwise. Like homes and businesses, every device comprising the internet needs an address so it can be located. I had a well working setup with IPv4 and IPv6. With a /64 PD from Comcast Xfinity, everything worked automatically when I had no VLANs. This is not ideal: a better solution is to receive a delegated prefix so that every device on LAN receives unique global addresses (GUAs) and avoids NAT. IPv4 will no longer be able to satisfy these needs. I see no mention of a 10. - I understand IPv4 - but Ipv6 is just a headache so far. I am not getting an IPv6 IP. In this mode I turn off the UDM's IPv6 to get things flowing right. Recently we tried looking further into the network issues and the Ps5 keeps saying “Can't connect to the internet. Blah12341. I'm using a Netgear CM2000 modem and an Orbi 750 system and at times a Reyee R6 mesh system. Why does Comcast give out /56 prefixes when /64 is what is standard via the IETF? Comcast is actually giving me 8 more address bits for a total of 72 for me. It's actually DHCPv6 "assisted or managed other stateful". Comcast Xfinity blocks the ability to setup a 6in4 tunnel through a tunnel broker service. Think of this address like your house number on a street. Login This means the chances of a DNS lookup including an IPv6 address as the first entry — thus the first thing your Internet clients will try — is high and getting higher. com, but not the clients. Internet protocol (IP) addresses don’t read as easily as 150 Maple Avenue. I have tried to with two different routers. If I run the cable modem into the Netgate it will get an IPv6 address on the WAN but the LAN devices do not. First open your USG device in your Unifi Dashboard and Change Xfinity/Comcast Router Settings! ALL SETTINGS!SMASH THAT SUBSCRIBE BUTTON!----- Comcast/Xfinity recently "performed maintenance in my area and upgraded equipment". Any Comcast users succeed with pfSense IPv6? I'd love to know what set of pfSense settings (and possible System Tunables) will do It does not work in all cases, call into Comcast and open a support ticket. While IPv4 is working correctly, I'm unfortunately seeing issues with IPv6. Xfinity For full functionality of this site it is necessary to enable JavaScript. - As you are typing a drop-down list appears.  Worked fine on Arris modem. Yeah. test-ipv6 says "No IPv6 address detected" but also "Your DNS server (possibly run by your ISP) appears to have IPv6 Internet access. The division point is called the netmask in IPv4 and the prefix in IPv6. Sign in. Also, if the device is dual-stack, you should check with the device manufacturer on how to disable the IPv6 or set the IPv4 as “Preferred”. A little weird, but not entirely "bad. If the device is dual-stack, you should check with the device manufacturer on how to disable the IPv6 or set the IPv4 as “Preferred”. Welcome to the Xfinity community! Our community is your official source on Reddit for help with Xfinity services. I confirmed that it is a Comcast IPv6 Address. My IPv6 address is changing PL281 . 4 hours later it's still solid. Internet connection is fine and Xbox services are up. The Balance router is also a proxy DNS server, and one if its functions is to substitute lookups for local hosts on the LAN to their local LAN address. and make that a reservation for your your PiHole server. Usually I'm assuming that the Fortigate user interface will show the IPV6 address if IPV6 is enabled in the firewall. EG +66 more. A domain (estarmail. . In that case either setting should be fine. At this time, our rental xFi Wireless Gateways require the Xfinity App to set up port forwarding. Not ideal, and moreover the address keeps changing, but at least it Xfinity is the trade name of Comcast Cable Communications, LLC, a subsidiary of Comcast Corporation, used to market consumer cable television, internet, telephone, and wireless services provided by the company. This is the opposite of what I expected with IPv6. google. It also bridges IPv6 to the Comcast modem. 345. According to the Xfinity support page the Motorola MB7621 does support IPv6 but for some reason I only get a IPv4 address. ny. While there Skip to main content. • The "To:" line prompts you to "Type the name of a person". Our goal is to utilize our own DHCPv6 server and distribute the full /56 block into multiple /64 subnets. If the device is dual stack, you should check with the device manufacturer on how to disable the IPv6 or set the IPv4 as “Preferred”. As of this writing in early 2024, we aren’t yet at the point where there are a lot of IPv6-only destinations on the Internet, but here in the US at least, over Specifically, the IPv6 address locates me in Oak Park, but the IPv4 address (which most streaming services rely on) places me in Rockford. dns105. Select "Xfinity Support" from that list • - An "Xfinity Support" graphic replaces the "To:" line • Type your message in the text area near the bottom of the window • Press Enter to send it IPv6 has been working great since I switched to xfinity 6 or so months ago, using DHCPv6 and requesting a /60. and the R7000 had the overheating problems. 0. Reboot the firewall so that it negotiates the IPV6 address with the CMTS. IPV6 - Prefix Delegation Size. Xfinity brand was I then followed another article and set LAN port IPv6 to "Track Interface" which has a STATIC IPv4 address of and it does get an IPv6 address which looks like this: :xxxx:xxxx:xxxx:xxxx . Cancel Post Also ping to an IPv4 address (or hostname that resolves to an IPv4 address) doesn’t work. 253 1. if someone has the IP of 2601:80:8400:2e70:8ee:8612:abcd:ef9a in New York their Forum discussion: When I click on settings, wifi and view my 5ghz information I notice underneath IPv6 it says 3 IP addresses. I have an ARRIS TG1682G Any help would be First off, SLAAC (stateless address autoconfiguration, the default method to assign addresses under IPv6) has never worked for me, so I'm forced to get a dynamic address via stateful DHCPv6 (just like in IPv4). Help & Hey michaelk, we have launched dynamic and static IPv6 support for our business customers, so I'd be happy to look into this for you. I'm reaching out for some advice on setting up IPv6 with my Comcast Xfinity router. 28. xx address you mention. net) you should have the same thing for IPv6 but have the host name be the interface ID portion so there are no duplicates (i. - An "Xfinity Support" graphic replaces the "To:" line. You have to now setup pfSense to use your prefix. In the office we get the IPv6 address by dhcpv6From this address, we have Internet connectivity, but this address is not available from anywhere, as if there is a stateful firewall somewhere in the I've had issues recently where all of a sudden I can no longer get a /60 IPv6 address. I tried that a few times. The settings on my router are slightly different. IPv4 goes through the modem fine during this outage so it is not an Ethernet cable or coax problem. interface cable0 ia_na 1 # Request an IPv6 address ia_pd 2 lan0/0 # Request a PD and assign it to lan0 (Replace cable0 and lan0 with your actual interface IPV6. I used the test site noted in the link, and received: "Your IPv4 address on the public Internet appears to be (IPV4 address) Your Internet Service Provider (ISP) appears to be COMCAST-7922 - Comcast Cable Communications, LLC No IPv6 address detected [more No luck, pinging a site just returns the IPv6 address and if i try "ping -4 comcast. json (the necessary dhcpv6-pd settings are not accessible via the web UI): Internet protocol (IP) addresses don’t read as easily as 150 Maple Avenue. IPv6 with Xfinity. Can’t access ipv6 address. The only problem I have is that I can't disable the IPv6 to allow my device to connect to the IPv4 address. It seems the address of the DHCPv6 server moved from a link local address to a public one. However, Xfinity seems to restrict us to a /64 prefix for DHCPv6 or SLAAC. Perfectly normal. st/3y3uW9V. Translating to your options, I'd try Auto Detect as Getting IPv6 working with Comcast/Xfinity . To get it to work for me, I had to try different settings, Also note you may need to restart the router between changes. x device at all in the ipconfig or ipconfig /all while hooked directly to the modem: biggest change is having IPv6. Take your /56 address from the comcast portal and put it in the "ipv6 address field" such as 2001:db8::/56 Then next to the left calculate button, put "8" You get something like this (Generated from that webpage): Also ping to an IPv4 address (or hostname that resolves to an IPv4 address) doesn’t work. Next day, my IPv6 stopped working. 254 address which is in my home's network and the DHCP server hands out 10. I have also setup Server 2019 DHCP6 multiple ways - and once a device phones home - it will get an address in the 'designated' scope active at the ASA Version 9. Tuesday, June 30th, 2020 12:00 PM. 0. Getting Started. 3, but I am not able to get an IPv6 prefix or address. Select "Xfinity Support" from that list. For This link says that all that is needed to do is to enable IPv6 on the Setup/IPV6 page in the DD-WRT router and to choose the IPv6 Type "DHCPv6 with Prefix Delegation", and the IPv6 In this tutorial, and if you have Comcast/Xfinity High Speed Internet and a new cable modem, you have IPv6 support. The listed IPv4 Address also is Comcast. The "To:" line prompts you to "Type the name of a person". Comcast Business. I've tried restarting my router/modem but didn't solve anything. On the WAN (cable) side it should be set to stateful if there's even an option. Closed. But the multiplayer test fails on Teredo. New ISPs cannot acquire enough IPv4 space anymore to give each user their own IPv4 address (ARIN delegated its last new block in 2015, and have a waiting list for reclaimed blocks), so they have to do some form of CG-NAT too. com) can have a MX record and it can have an A record but the MX Highlight and copy the IP address. I tried bypassing my router and connected my PC directly to the Arris SB8200 modem and when I goto https://test-ipv6-vm3. also in the mb8611 event logs mine mentions ipv6 provisioning mode. But ipv4 has been spot on for me. I have configured IPv6 to be enabled. You can use DHCPv6 for things like Prefix Delegation or For v4, due to reasons involving the shortage of v4 addresses, all connections from your network will instead appear to come from the WAN address of your router, which is the 73. If you check your interfaces on the USG you should see an ipv6 address from Comcast. If I remove the Netgate I get an IPv6 address. Once I introduced VLANs, I could not get IPv6 working automatically. Motivation. Instead, type "Xfinity Support" there • - As you are typing a drop-down list appears. There won't be on a rented Xfinity gateway. Power cycled the modem and router separately as well as together. I now suspect that Comcast may have made just such a change in their provisioining recently (since the modem UI says "IPv6 address" and one of the Comcast tech support persons said that they use IPv6 provisioning) and that following the unexplained reboot Monday night, the modem came back up with only an IPv6 address and this is now why I can't Will you please send our team a direct message with your full name and full address? ~~~~ To send a "Peer to peer" message: Click "Sign In" if necessary • Click the "Peer to peer chat" icon • Click the "New message" (pencil and paper) icon • Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list If you did, please remove the that, and the Xfinity app will use an IP address to establish the port forward. The LAN clients all picked up new and working IPv6 addresses. Not Business Class, in case it makes a difference. rdrge lisc koqm xaawn vos ocfhk yumzdc pysnm vszii xtqv